October 2017
Intermediate to advanced
354 pages
9h 28m
English
Content preview from Mastering Linux Kernel Development
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VFS structures and operations
Deciphering the key objects and data structures of VFS lets us gain clarity on how the VFS internally works with filesystems and enables the all-important abstraction. Following are four elemental data structures around which the entire web of abstraction is weaved:
- struct super_block--which contains information on specific filesystems that have been mounted
- struct inode--which represents a specific file
- struct dentry--representing a directory entry
- struct file--representing the file which has been opened and linked to a process
All of these data structures are bound to appropriate abstract operation interfaces that are defined by filesystems.
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